Re: Matrix Multiplication Woes

2012-01-18 Thread Ben Mabey
On 1/17/12 5:22 PM, blcooley wrote: On Jan 17, 5:43 pm, Sam Ritchie wrote: Update -- I wrapped the JBLAS library and ended up with stellar performance, about 3x faster than numpy. https://gist.github.com/264a2756fc657140fdb8 You might not be interested at this point, but you can get better

Re: Matrix Multiplication Woes

2012-01-17 Thread blcooley
On Jan 17, 5:43 pm, Sam Ritchie wrote: > Update -- I wrapped the JBLAS library and ended up with stellar > performance, about 3x faster than numpy. > > https://gist.github.com/264a2756fc657140fdb8 > You might not be interested at this point, but you can get better performance than using the Inc

Re: Matrix Multiplication Woes

2012-01-17 Thread Sam Ritchie
Update -- I wrapped the JBLAS library and ended up with stellar performance, about 3x faster than numpy. https://gist.github.com/264a2756fc657140fdb8 On Tue, Jan 17, 2012 at 10:37 AM, Sam Ritchie wrote: > Hey all, > > I'm running into some large performance differences with matrix > multiplicat

Matrix Multiplication Woes

2012-01-17 Thread Sam Ritchie
Hey all, I'm running into some large performance differences with matrix multiplication between Python's Numpy and Clojure -- so big that I'm almost certainly doing something very wrong. Numpy seems to be able to multiply a 1,000,000x23 matrix by its transpose in under a second, while the equivale